Results 81 to 90 of about 271,977 (249)
Nanomaterials, 2018 As a step towards efficient and cost-effective electrocatalytic cathodes for Li–O2 batteries, highly porous hausmannite-type Mn3O4 hollow nanocages (MOHNs) of a large diameter of ~250 nm and a high surface area of 90.65 m2·g−1 were ...
Amrita Chatterjee +2 more
doaj +1 more source
Population densities in a titanium hollow cathode [PDF]
, 1981 Measurements are reported of population densities in the energy level systems of neutral and singly ionised titanium. The discharge under investigation was a high-current hollow cathode operated in argon or neon as a buffer gas.
Kock, M. +3 more
core +1 more source
Self‐Responsive Plastron Maintenance on a Superhydrophobic Mesh via Locally Integrated Electrolysis
Advanced Science, EarlyView.This work presents a self‐switchable SHM‐E surface that enables rapid, autonomous plastron self‐repair and long‐term stability. Plastron loss triggers circuit closure and localized electrolysis, while capillary spreading rapidly restores a continuous plastron and self‐terminates the current.
Jiaming Wang, Zhen Zhang, Yuhong Liu
wiley +1 more source
Controllable Preparation of V2O5 Hollow Microspheres as Cathode Materials for Lithium-Ion Batteries
International Journal of Electrochemical Science, 2017 Hollow-structured vanadium oxides with tunable interiors have attracted significant attention in energy storage and conversion systems. In this work, we report the continuous structural engineering of VO2 solid microspheres utilizing a second ...
Xinxin An +3 more
doaj +1 more source
Influence of the cathode material in the cathode fall characteristics of a hydrogen hollow cathode glow-discharge [PDF]
, 2018 Producción CientíficaIn this work, we present Doppler free two photon optogalvanic measurements to determine the local electric field strength (E-field) in the cathode fall region of a hollow cathode discharge, operated in pure hydrogen, via the Stark ...
C. Pérez +10 more
core +1 more source
eppdyl/cathode-database: Version 1.0.2
, 2021 <p>A database of thermionic, orificed hollow cathode data. Corresponding publication:</p> <p>P.-Y. C. R. Taunay, C. J. Wordingham, and E. Y. Choueiri.
Pierre-Yves Taunay
core +1 more source
Advanced Science, EarlyView.Scalable synthesis of single‐crystal mid‐nickel cathodes demands precise kinetic control over competing densification and grain growth. Oxygen partial pressure emerges as a quantitative descriptor of effective grain‐boundary mobility, acting through changes in the apparent sintering activation barrier.
Hyeonho Park +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.Pt1, an organometallic platinum‐based complex, act as a modulator of redox homeostasis in cnidarians, regulating cellular functions and life‐cycle dynamics. In Nematostella vectensis, it mitigates oxidative stress, strengthens detox systems and accelerates development.
Giuseppina Tommasini +13 more
wiley +2 more sources
Emitter depletion measurement and modeling in the T5&T6 Kaufman-type ion thrusters
, 2007 This paper presents some of the aspects of a program undertaken by Qineti Q to characterize and determine the depletion rates and predict life time of its cathode technology.
Ahmed Rudwan, Ismat M. +3 more
core +1 more source
Hollow Cathode Discharges - Analytical Applications
Journal of Research of the National Bureau of Standards, 1984 The low pressure glow discharges considered in this paper are the hollow cathode (Paschen), and the flat cathode (Grimm). Both discharges have similar voltage-current characteristics which are responsible for their radiation stability. The analytical sample is supplied to the discharge through a sputtering mechanism which provides a stable and non ...
openaire +2 more sources